Which of the following statements is correct?

Question

BlackTom AI · Accepted Answer

Central bank independence reduces the inflationary bias that arises when elected governments pressure monetary authorities to create surprise inflation to temporarily boost output. Key concepts: central bank independence (operational/instrument and goal/target independence), time-inconsistency problem (Barro–Gordon framework), credibility and inflation expectations, and empirical cross-country evidence (Cukierman et al., Alesina & Summers and subsequent studies).

Step-by-step reasoning:
1. Time-inconsistency and political pressure: Without independence, monetary authorities face incentives to create surprise inflation to temporarily lower unemployment. Knowing this, private agents form higher inflation expectations, producing persistently higher inflation without sustained output gains.
2. Independence improves commitment: An independent central bank can commit credibly to low-inflation policy because it is less subject to short-term political pressures to finance deficits or stimulate the economy via surprise inflation.
3. Expectations channel: Credible commitment lowers inflation expectations. Because expected inflation feeds into wage-setting and price-setting, lower expectations translate into lower actual inflation.
4. Empirical support: Cross-country econometric studies consistently find a negative correlation between legal and de facto measures of central bank independence and average inflation rates. Countries scoring high on independence indices tend to have several percentage points lower average inflation historically. These studies also show weaker or no consistent effect on long-run real output, consistent with the theory that independence trades off inflation bias rather than long-run employment.

Why the correct option is correct:
- It states that countries with the most independent central banks have had a better record at controlling inflation, matching both the theoretical mechanism (reduced time inconsistency, stronger credibility) and the empirical findings.

Why the other options are incorrect:
- “Most dependent central banks have had a better record” contradicts theory and evidence.
- “Most independent central banks have had a worse record” is the opposite of empirical results.
- “There is no evidence” is false because multiple studies document the link between independence and lower inflation.

Conclusion: The correct answer is “Those countries with the most independent central banks have had a better record at controlling inflation than other countries,” which matches the provided answer.

Which of the following statements is correct? Single choice

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